通过浸渍和煅烧制备了新型光催化剂BiVO₄、CoO_x/BiVO₄与CeO₂-CoO_x/BiVO₄,并通过XRD、SEM、TEM和XPS等手段对催化剂进行表征与分析,探讨了催化剂在不同条件下对有机工业废水的光催化性能。结果表明,CeO₂-CoO_x/BiVO₄复合型光催化剂的降解效果最好,处理废水2 h后COD降解效率达到61%,说明掺杂负载可以有效提高催化性能;最佳光照时间为120 min,最佳投药量为1.0 g/L,且具有良好的稳定性。

Novel photocatalysts including BiVO₄,CoO_x/BiVO₄ and CeO₂-CoO_x/BiVO₄ are synthesized through impregnation and calcination,and characterized by means of XRD,SEM,TEM,and XPS.Their catalytic performance for industrial wastewater under different conditions is analyzed.The results show that CeO₂-CoO_x/BiVO₄ composite photocatalyst delivers the best degradation effect,over which the COD degradation efficiency of wastewater reaches 61% after 2 hours of treatment,indicating that doping loading can effectively improve catalytic performance.The optimal illumination time and dosage quality are 120 minutes and 1.0 g/L,respectively,and the photocatalyst has good stability.

孙心(1997-),男,硕士生,研究方向为废水深度降解技术,1399177668@qq.com